Main Office
Barangay Road, Barrio Mamplasan, Biñan, Laguna
Phone:
(02) 889-9058,
(02) 848-6951,
(049) 539-0102 fax local 404
E-mail:
customer.service@ostrealabs.com.ph,
customerservice.ostrealabs@gmail.com
Makati
G14 Valero Plaza Condominium, 124 Valero Street, Salcedo Village, Makati City
Phone:
(02) 812-3135,
(02) 399-5158
E-mail:
customer.service@ostrealabs.com.ph,
omli.makati@ostrealabs.com.ph
Cebu
RJ Ouano Building, M.C. Briones Street, Highway, Bakilid, Mandaue City, Cebu
Telefax:
(032) 343-6472
(032) 383-8077
E-mail:
ajsagonoy@ostrealabs.com.ph
jdllaban@ostrealabs.com.ph
Cagayan De Oro
205 Tres Montanas Business Complex Jr. Gusa, Cagayan de Oro City
Telefax:
(088) 880-9070
E-mail:
omli.mindanao@ostrealabs.com.ph
omli.mindanao@gmail.com
General Santos
DCSI-A Building, Purok Maliwanag, Lower Acharon Brgy. Calumpang, General Santos City 9500
Phone:
(083)878-1676
E-mail:
customer.service@ostrealabs.com.ph,
customerservice.ostrealabs@gmail.com
Pampanga
2nd floor, LC Building, Olongapo- Gapan Road, Jose Abad Santos Avenue, Brgy. Dolores, City of San Fernando, Pampanga 2000
Phone:
(045)407-2822
E-mail:
customer.service@ostrealabs.com.ph,
omli.makati@ostrealabs.com.ph